Alon Transparent Ceramic

The vickers hardness of highly transparent alon ceramic is about 15 95 0 17 gpa indicating that our method has a promising future in transparent alon ceramic production.

Alon transparent ceramic. Alon is optically transparent 80 in the near ultraviolet visible and midwave infrared regions of the electromagnetic spectrum. The advantage of this method is that it can be. Surmet is the only company globally that manufactures alon. Introduction spinel aluminum oxynitride c alon is a solid solution centered around al 23o 27n 5 9al 2o.

It is four times harder than fused silica glass 85 as hard as sapphire and nearly 15 harder than magnesium. Transparent crystalline ceramics are used to defeat advanced threats. In the popular media and in the star trek community it is commonly referred to as transparent aluminum. The pressurelessly sintered alon ceramic wafers of different sizes and shapes possess the transmittance of 84 at the wavelength of 2000 nm.

Up to now most of the transparent alon ceramic is fabricated by the traditional sintering techniques such as reaction sintering the pressureless sintering hot pressing and hot isostatic pressing techniques among them the most common approach is the reaction sintering of aln and al 2 o 3 at high temperature. Aluminum oxynitride alon magnesium aluminate spinel and single crystal aluminum oxide. Known commercially as alon transparent aluminum armor is made of aluminum oxynitride a combination of aluminum oxygen and nitrogen before it can end up as a hard transparent armor plate it begins as a powder. Hardness of highly transparent alon ceramic is about 15 95 6 0 17 gpa indicating that our method has a promising future in transparent alon ceramic production.

Aluminium oxynitride or alon is a ceramic composed of aluminium oxygen and nitrogen it is marketed under the name alon by surmet corporation. The sintering promoting mechanisms of y 2o 3 are also discussed in detail. Alon or aluminum oxynitride is an amazing and unique transparent advanced ceramic that is polycrystalline made from powder with a cubic spinel crystal structure. This powder is then molded subjected to high heat and baked just as any other ceramic is baked.

Transparent aluminum oxynitride alon ceramics have been prepared through aqueous gelcasting forming technique starting from the raw materials of single phase alon powders. Thus non aqueous tape casting forming technology will help to expand the forming technology of alon ceramic especially suitable for the fabrication of large and thin transparent alon ceramic wafer.